BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Make a Calendar//Week Number//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:mac-week-1977-W12@make-a-calendar.com
DTSTAMP:20260920T181439Z
DTSTART;VALUE=DATE:19770321
DTEND;VALUE=DATE:19770328
SUMMARY:ISO Week 12, 1977
DESCRIPTION:Monday–Sunday · 1977-W12 · Mar 21 – Mar 27, 1977
URL:https://make-a-calendar.com/week-number/1977/12
END:VEVENT
END:VCALENDAR